producers. This loss is estimated at $750 million annually nationwide. Calving difficulty increases calf death loss, cow mortality, labor and veterinary costs; it delays the return of cows to estrus and reduces conception rates. It also lowers calf weaning weight and market value, which results from breeding of young heifers and cows to easy calving bulls to reduce calving difficulty. Studies s...

this study was accomplished in iran to investigate waste of common log sawing methods and to propose new sawing method. the old methods were performed due to difficulties on carrying logs out of forest. it seems necessary to change old methods due to development of sawmills and forest harvesting plans. the dimensions of wood products were collected to calculate the waste of old sawing methods ....

Fisheries scientist David Conover, dean and director of the Marine Sciences Research Center at SUNY Stony Brook, is leading the most extensive laboratory study to date on the effects of size-selective harvesting in fish stocks. As described in Scientific American magazine, he and his team mimicked fishing by removing 90 percent of the largest fish from a lab population of Atlantic Siversides (M...

the New York–New Jersey region plunged 51 percent— a drop that far exceeded the 8.4 percent decline in manufacturing jobs nationwide. Some areas within the region were especially hard hit by the employment losses: New York City shed more than two-thirds of its manufacturing jobs, while neighboring northern New Jersey lost 55 percent. Inflation-adjusted, or real, income from manufacturing also f...

urea is the most common form of nitrogen fertilizer used in sugar beet cultivation. urea has a high solubility and its losses are high and consequently its efficiency is low. it is supposed that urea solubility can be limited and its efficiency can be increased by using slow-release nitrogen fertilizers. by conducting an experiment in three important sugar beet cultivation areas of khorasan pro...

Post-harvest losses relate to the degradation in quantity and quality of crop’s products from harvesting consumer usage. In many developing countries, like Pakistan, post-harvest loss is a problem food security concern everyone. Inappropriate handling agricultural after harvest may cause losses. It also accounts for increasing prices Pakistan. The total production vegetables fruits Pakistan nea...